Outside Micrometers for Grooves and Keyways with Calibration Certificate
These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. The anvil and spindle are shaped for measuring small grooves and keyways. Each micrometer has a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. A constant-force mechanism stops the micrometer’s spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
Micrometers with SPC data output allow for connection to a computer or data processor.
142 models have a mechanical analog counter that displays measurement readings. They do not require batteries.
342 and 422 models have an easy-to read LCD. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
USB data cable (sold separately) connects micrometers with SPC data output directly to your PC.
10-pin data cables (sold separately) connect micrometers with SPC data output to a Mitutoyo miniprocessor or multiplexer.
Wireless data transmitter and receiver (sold separately) allow you to transmit measurement data from micrometers with SPC data output to your PC without being tethered by a cable.
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle  | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers | ||||||||
|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | ||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | Vernier Scale | 112-225 | 0000000 | 0000000 |
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Analog Counter Numeric Increments | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with Analog Display | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | |||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 15° | 0.001" | Vernier Scale | 142-177 | 0000000 | 0000000 |
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | 0.001" | Vernier Scale | 142-225 | 0000000 | 000000 |
Measuring Range | Accuracy | Measuring Increments | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Point Angle | Batteries Included | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with LCD Display | ||||||||||||
Without SPC Data Output—Ratchet-Stop Thimble | ||||||||||||
| 0"-1" | 0 mm-25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 15° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-351-30 | 00000000 | 0000000 |
| 0"-1" | 0 mm-25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 30° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-361-30 | 00000000 | 000000 |
With SPC Data Output—Ratchet-Stop Thimble | ||||||||||||
| 0"-1" | 0 mm-25.4 mm | ±0.00015" | ±0.00381 mm | 0.00005" | 0.001 mm | 1 1/4" | __ | Yes | Zero-Position Memory (ABS), Zero-Set Button | 422-330-30 | 0000000 | 000000 |
Outside Micrometers for Grooves and Keyways
The anvil and spindle are pointed for measuring small grooves and keyways. Each micrometer has a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. A constant-force mechanism stops the micrometer’s spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
142 models have a mechanical analog counter that displays measurement readings. They do not require batteries.
342 models have an easy-to read LCD. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers | ||||||||
|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | ||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | Vernier Scale | 112-225 | 0000000 | 0000000 |
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Analog Counter Numeric Increments | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with Analog Display | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | |||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 15° | 0.001" | Vernier Scale | 142-177 | 0000000 | 0000000 |
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | 0.001" | Vernier Scale | 142-225 | 0000000 | 000000 |
Measuring Range | Accuracy | Measuring Increments | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Point Angle | Batteries Included | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with LCD Display | ||||||||||||
Ratchet-Stop Thimble | ||||||||||||
| 0"-1" | 0 mm-25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 15° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-351-30 | 00000000 | 0000000 |
| 0"-1" | 0 mm-25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 30° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-361-30 | 00000000 | 000000 |
Outside Micrometers for Screw Threads
Measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves. This micrometer has a plain thimble, which relies on operator feel for accurate measurements.
Outside Micrometers for Screw Threads with Calibration Certificate
This micrometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. Use it to measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves. It has a plain thimble, which relies on operator feel for accurate measurements.
Outside Micrometers for End Mills, Taps, and Reamers
A V-shaped anvil is designed to measure the outside diameter of cutting tools with three flutes. This micrometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It has a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. A constant-force mechanism stops the micrometer’s spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
USB data cable (sold separately) connects the micrometer directly to your PC.
10-pin data cables (sold separately) connect the micrometer to a Mitutoyo miniprocessor or multiplexer.
Wireless data transmitter and receiver (sold separately) allow you to transmit measurement data from the micrometer to your PC without being tethered by a cable.
Measuring Range | Accuracy | Measuring Increments | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Frame Material | Batteries Included | Manufacturer | Manufacturer Model Number | Each | |
Ratchet-Stop Thimble | ||||||||||||
| 0.05"-0.6" | 1.27 mm-15.24 mm | ±0.0002" | ±0.00508 mm | 0.00005" | 0.001 mm | 0.98" | Cast Iron | Yes | Mitutoyo | 314-351-30 | 0000000 | 0000000 |
Outside Micrometers for Wire Crimps
Measure the height of your crimp to confirm the wire connection is secure and accurate in size. These micrometers have a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. To prevent overtightening, the thimble stops moving once it touches the wire crimp you're measuring. However, the speeder knob will continue turning with a clicking sound.
These micrometers have zero-position memory, also called absolute positioning (ABS), which keeps the spindle in the same position after it is turned off. They have a zero-set button to start measuring at any point along the spindle, like pressing a tare button on a scale.
USB data cable (sold separately) connects micrometers with SPC data output directly to your PC.
10-pin data cables (sold separately) connect the micrometer to a miniprocessor or multiplexer.
Wireless data transmitter and receiver (sold separately) allow you to transmit measurement data from the micrometer to your PC without being tethered by a cable.
Measuring Range | Accuracy | Measuring Increments | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Point Angle | Frame Material | Batteries Included | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers | |||||||||||||
Ratchet-Stop Thimble | |||||||||||||
| 0"-0.8" | 0 mm-20 mm | ±0.00015" | ±0.004 mm | 0.00005" | 0.001 mm | 1/4" | 60° | Cast Iron | Yes | Zero-Position Memory (ABS), Zero-Set Button | 342-371-30 | 0000000 | 0000000 |